Patents by Inventor Hardi Dohler

Hardi Dohler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220112398
    Abstract: An organosiloxane which has at least one aromatic radical can be used in release coatings. Compositions, radiation-curing coating materials and release coatings can contain this organosiloxane. A method can be used to produce a release coating using this organosiloxane. The said organosiloxane is notable in that the at least one aromatic radical is bonded via a non-aromatic organic radical to a silicon atom.
    Type: Application
    Filed: December 10, 2019
    Publication date: April 14, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Hardi Döhler, Irem Karabulut
  • Patent number: 10407592
    Abstract: Described is a method for synthesizing polymer compounds (P), preferably polysiloxanes, comprising at least one carboxylic ester group, in particular (meth)acrylate-containing polysiloxanes, said method being carried out in the presence of conversion products (U) of metal salts, in particular chromium(III) salts, and conversion products of aldehydes and primary amines.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: September 10, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Sadik Amajjahe, Frauke Henning, Wilfried Knott, Horst Dudzik, Gabriele Platte, Florian Gaber, Hardi Döhler
  • Publication number: 20190048228
    Abstract: Described is a method for synthesizing polymer compounds (P), preferably polysiloxanes, comprising at least one carboxylic ester group, in particular (meth)acrylate-containing polysiloxanes, said method being carried out in the presence of conversion products (U) of metal salts, in particular chromium(III) salts, and conversion products of aldehydes and primary amines.
    Type: Application
    Filed: October 13, 2016
    Publication date: February 14, 2019
    Inventors: Sadik Amajjahe, Frauke Henning, Wilfried Knott, Horst Dudzik, Gabriele Platte, Florian Gaber, Hardi Döhler
  • Publication number: 20180258228
    Abstract: The invention relates to a method for producing polymer materials (P), preferably polysiloxanes, having at least one carboxylic acid ester group, in particular (meth)acrylate-containing polysiloxanes, wherein the process is carried out in the presence of reaction products (U) of metal salts, in particular chromium(III) salts, and primary amines.
    Type: Application
    Filed: October 13, 2016
    Publication date: September 13, 2018
    Inventors: Sadik Amajjahe, Frauke Henning, Wilfried Knott, Horst Dudzik, Gabriele Platte, Florian Gaber, Hardi Döhler
  • Publication number: 20080187702
    Abstract: The invention relates to acrylate dispersion adhesives containing at least one UV absorber selected from the group consisting of benzoate esters and benzoic ester derivatives, cinnamic esters and cinnamic ester derivatives, benzophenone and benzophenone derivatives, octocrylene, avobenzene and camphor derivatives, and also to the laminates produced using these adhesives. It additionally relates to a process for producing these laminates and to their use for producing no-label-look labels.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 7, 2008
    Applicant: Evonik Goldschmidt GmbH
    Inventors: Michael Ferenz, Hardi Dohler, Winfried Hamann, Christian Mund, Juergen Pomorin, Philipp Tomuschat
  • Publication number: 20070295243
    Abstract: The invention provides for the use of hydroxyl-functional polyalkylorganosiloxanes of the general formula (IV) as solvents for cationic photoinitiators and for the use of these solutions in cationically curable silicones.
    Type: Application
    Filed: September 7, 2007
    Publication date: December 27, 2007
    Applicant: Goldschmidt AG
    Inventors: Hardi Dohler, Sascha Oestreich
  • Patent number: 7276541
    Abstract: The invention provides for the use of hydroxyl-functional polyalkylorganosiloxanes of the general formula (IV) as solvents for cationic photoinitiators and for the use of these solutions in cationically curable silicones.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: October 2, 2007
    Assignee: Goldschmidt AG
    Inventors: Hardi Döhler, Sascha Oestreich
  • Patent number: 7250204
    Abstract: The present invention provides for the use of radiation-curable coating compositions comprising at least one radiation-curable organopolysiloxane having (meth)acrylic ester groups and a photoinitiator, wherein said photoinitiator includes at least one compound of the general formula in which R1 is a linear or branched alkyl radical having 3 to 18 carbon atoms, preferably 4 to 12 carbon atoms, R2 is an alkyl radical having 1 to 4 carbon atoms, preferably hydrogen, R3, R4 are alkyl radicals having 1 to 6 carbon atoms, which may also have been linked to form a 5- or 6-membered carbon ring or one of these radicals may also be hydrogen, and R5 is an alkyl or alkanoyl radical, preferably hydrogen; for preparing adhesive coating materials and producing adhesive coatings.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: July 31, 2007
    Assignee: Goldschmidt AG
    Inventors: Mike Brand, Hardi Döhler, Winfried Hamann, Jürgen Pomorin
  • Publication number: 20050209359
    Abstract: The present invention provides radiation-curable coating compositions for producing adhesive coatings, comprising at least one radiation-curing organopolysiloxane having (meth)acrylate ester groups, an additive to compensate the inhibition caused by oxygen in the coarse of curing, and, if desired, photoinitiators and customary auxiliaries and adjuvants, wherein said additive used is at least one antioxidant from the group of phosphorus(III) compounds and/or sulfur compounds.
    Type: Application
    Filed: May 6, 2005
    Publication date: September 22, 2005
    Inventors: Mike Brand, Hardi Dohler, Winfried Hamann, Jurgen Pomorin
  • Publication number: 20040082681
    Abstract: The present invention provides for the use of radiation-curable coating compositions comprising at least one radiation-curable organopolysiloxane having (meth)acrylic ester groups and a photoinitiator, wherein said photoinitiator includes at least one compound of the general formula 1
    Type: Application
    Filed: October 14, 2003
    Publication date: April 29, 2004
    Inventors: Mike Brand, Hardi Dohler, Winfried Hamann, Jurgen Pomorin
  • Publication number: 20040019126
    Abstract: The present invention provides radiation-curable coating compositions for producing abhesive coatings, comprising at least one radiation-curing organopolysiloxane having (meth)acrylate ester groups, an additive to compensate the inhibition caused by oxygen in the course of curing, and, if desired, photoinitiators and customary auxiliaries and adjuvants, wherein said additive used is at least one antioxidant from the group of the phosphorus(III) compounds and/or sulfur compounds.
    Type: Application
    Filed: July 16, 2003
    Publication date: January 29, 2004
    Inventors: Mike Brand, Hardi Dohler, Winfried Hamann, Jurgen Pomorin
  • Patent number: 6268404
    Abstract: This invention provides radiation-curing coating compositions comprising a mixture of organopolysiloxanes modified laterally and terminally with acrylic groups, which exhibit markedly improved adhesion to a variety of substrates following curing and for which there is little or no change in the adhesiveness on storage for prolonged periods.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: July 31, 2001
    Assignee: Th. Goldschmidt AG
    Inventors: Hardi Döhler, Thomas Ebbrecht, Winfried Hamann, Peter Lersch, Stefan Stadtmüller
  • Patent number: 6211322
    Abstract: The invention relates to organopolysiloxanes comprising (meth)acrylate groups, to a process for their preparation and to their use as radiation-curing coating materials.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: April 3, 2001
    Assignee: Th. Goldschmidt AG
    Inventors: Hardi Döhler, Thomas Ebbrecht, Stefan Stadmüller
  • Patent number: 5260402
    Abstract: Curable organopolysiloxanes are disclosed which contain oxyalkylene ether groups linked through SiOC groups; the oxyalkylene ether groups have the formula ##STR1## A method for the synthesis of these compounds, as well as their use as casting compositions, adhesive coating agents and modifying additives for compounds which can be cured cationically, by free radicals, or by high-energy radiation are also disclosed.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: November 9, 1993
    Assignee: Th. Goldschmidt AG
    Inventors: Christian Weitemeyer, Hardi Dohler
  • Patent number: 5145915
    Abstract: Curable polysiloxanes having oxyalkylene vinyl ether groups linked through SiC groups are disclosed wherein the vinyl groups may be substituted by alkyl. Methods for producing these compounds and their use as preferably photochemically curable polysiloxanes in various products are also disclosed.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: September 8, 1992
    Assignee: Th. Goldschmidt AG
    Inventors: Christian Weitemeyer, Hardi Dohler
  • Patent number: 5146005
    Abstract: New, cationically curable oxyalkylene ethers and the synthesis thereof are disclosed. The oxyalkylene ethers, are of the general, average formula ##STR1## wherein R.sup.1 is an n-valent residual group derived from a compound (R.sup.1)H.sub.n from which n active hydrogen atoms have been split off and is capable of entering into an addition reaction with oxiranes, or a univalent alkyl or aryl group, and n.gtoreq.1;R.sup.2 is a hydrogen, hydrocarbon or R.sup.3 OCH.sub.2 -- group;R.sup.3 and R.sup.4 are each hydrogen, hydrocarbon or acyl groups, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may have different meanings in the molecule;R.sup.5, R.sup.6 and R.sup.7 are each hydrogen or alkyl groups with 1 to 8 carbon atoms, or R.sup.5 and R.sup.7, or R.sup.6 and R.sup.7 together are a constituent of a cyclic, non-aromatic hydrocarbon group with 5 or 6 carbon atoms;m is at least 1 and at most n;x is the average molecule=3 to 100, andy in the average molecule=0 to 100, provided that 3.ltoreq.x+y<150.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: September 8, 1992
    Assignee: TH. Goldschmidt AG
    Inventors: Christian Weitemeyer, Hardi Dohler
  • Patent number: 4978726
    Abstract: Novel polysiloxanes with (meth)acrylate groups and monocarboxylate groups and their use as radiation-curable abhesive coating matrials are disclosed. The modified polysiloxanes adhere well to the support that is to be coated and can be cured at a high rate on the support. The cured coating has good chemical and physical stabilities and a high flexibility. The abhesive properties can be adapted to the chemical character of the adhesives, so that the desired degree of abhesiveness is obtained.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: December 18, 1990
    Assignee: Th. Goldschmidt AG
    Inventors: Hardi Dohler, Jurgen Jachmann, Christian Weitemeyer, Dietmar Wewers